Egyptian hydraulics: Does this idea hold water?

This exercise is a part of Educator Guide: Investigating Phenomena with SEPs and Hydraulic Engineering CER / View Guide
A diagram of the area around Djoser pyramid shows how water from a nearby Nile tributary could have been collected and channeled to the pyramid, where it may have been used as part of a hydraulic lift system, according to new research.
A controversial analysis suggests that a stone-walled dam (far left in this diagram) channeled flood water to...